Audio device and spatial noise reduction method thereof, and system

An audio equipment and space technology, applied in the field of noise reduction, can solve problems such as poor noise reduction effect, achieve the effect of improving the quality of life, expanding the range of suppression, and meeting the needs of users

Active Publication Date: 2018-12-28
WEIFANG GOERTEK ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the active noise reduction system in the prior art is usually composed of a single microphone and a single speaker. After the microphone picks up the noise, only one speaker can emit an anti-phase sound wave opposite to the noise phase to cancel the noise. However, Since the

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  • Audio device and spatial noise reduction method thereof, and system
  • Audio device and spatial noise reduction method thereof, and system
  • Audio device and spatial noise reduction method thereof, and system

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Embodiment Construction

[0050] Embodiments of the present invention provide an audio device and its spatial noise reduction method and system, which expand the suppression range of spatial noise during use, enhance the noise reduction effect, and ensure that the user's voice signal is not suppressed. It brings convenience to users and is conducive to meeting user needs.

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invent...

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PUM

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Abstract

The invention discloses an audio device and a spatial noise reduction method thereof. The audio device comprises a microphone array and a horn array. The microphone array comprises a plurality of first microphones arranged in different spatial directions. The horn array comprises a plurality of first horns arranged one by one corresponding to the first microphone. The method includes acquiring a first sound signal received by each of the first microphones; the first sound signal includes a user sound signal and a noise sound signal. Controlling a corresponding first horn to play a suppressed sound signal for the noise sound signal according to the preset sound information and each first sound signal; the suppressed sound signal includes an inverse sound wave for suppressing a correspondingnoise sound signal, and the preset sound information includes user sound information acquired in advance. The invention enlarges the suppression range of the spatial noise in the use process, enhances the noise reduction effect, and also ensures that the sound signal of the user is not suppressed, so as to be convenient for the user to use.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of noise reduction, and in particular, to an audio device and a spatial noise reduction method and system thereof. Background technique [0002] Noise exists everywhere in people's lives, such as the sound of vehicles running, whistles, construction sounds, etc. Noise brings great troubles to people's lives, and in severe cases, it will affect human health. With the development of science and technology, active noise reduction technology came into being. Active noise reduction is to offset the external noise by generating reverse sound waves equal to the external noise through the noise reduction system. At present, the active noise reduction system in the prior art is usually composed of a single microphone and a single speaker. After the microphone picks up the noise, only one speaker can emit an anti-phase sound wave opposite to the noise phase to cancel the noise. However, Since th...

Claims

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Application Information

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IPC IPC(8): H04R3/00
CPCH04R3/00H04R2410/01
Inventor 董坤刘小建邢朋朋
Owner WEIFANG GOERTEK ELECTRONICS CO LTD
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